Those injectors are going to melt a piston in short order. Do a search on the problems people have had with venom injectors. An even better tip: Don't buy any fuel injectors, no matter what brand off of ebay UNLESS the seller is a licesensed vendor of the company they are selling the injectors for. Another heads up: There are members on here who are able to get you the real deal injectors for cheaper than most places out there, plus they come with flow charts displaying what each injector flows and how close they are.